Tejun Heo 9a4f8a878b x86: make embedding percpu allocator return excessive free space ...

Impact: reduce unnecessary memory usage on certain configurations

Embedding percpu allocator allocates unit_size *
smp_num_possible_cpus() bytes consecutively and use it for the first
chunk.  However, if the static area is small, this can result in
excessive prellocated free space in the first chunk due to
PCPU_MIN_UNIT_SIZE restriction.

This patch makes embedding percpu allocator preallocate only what's
necessary as described by PERPCU_DYNAMIC_RESERVE and return the
leftover to the bootmem allocator.

Signed-off-by: Tejun Heo <tj@kernel.org>

2009-03-06 14:33:59 +09:00

..

acpi

Merge branches 'x86/acpi', 'x86/apic', 'x86/asm', 'x86/cleanups', 'x86/mm', 'x86/signal' and 'x86/urgent'; commit 'v2.6.29-rc6' into x86/core

2009-02-24 21:50:43 +01:00

apic

x86_32: apic/numaq_32, fix section mismatch

2009-03-02 12:00:25 +01:00

cpu

Merge branch 'x86/core' into core/percpu

2009-03-04 02:29:19 +01:00

.gitignore

…

alternative.c

x86: make vmap yell louder when it is used under irqs_disabled()

2009-02-25 16:38:34 +01:00

amd_iommu_init.c

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/linux-2.6-iommu

2009-01-03 12:03:52 -08:00

amd_iommu.c

AMD IOMMU: remove now unnecessary #ifdefs

2009-01-03 16:44:15 +01:00

aperture_64.c

aperture_64.c: clarify that too small aperture is valid reason for this code

2008-11-28 15:24:39 +01:00

apm_32.c

Merge branch 'linus' into x86/apic

2009-02-22 20:05:19 +01:00

asm-offsets_32.c

x86: make lazy %gs optional on x86_32

2009-02-10 00:42:00 +01:00

asm-offsets_64.c

x86: remove pda.h

2009-01-20 12:29:20 +09:00

asm-offsets.c

…

audit_64.c

…

bios_uv.c

x86: bios_uv.c: uv_systab should be static

2008-12-29 22:08:28 -08:00

bootflag.c

…

check.c

x86: corruption-check: some post-move cleanups

2008-10-27 18:09:45 +01:00

cpuid.c

Merge branch 'cpus4096-for-linus-3' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

2009-01-03 12:04:39 -08:00

crash_dump_32.c

kdump: make elfcorehdr_addr independent of CONFIG_PROC_VMCORE

2008-10-20 08:52:39 -07:00

crash_dump_64.c

kdump: make elfcorehdr_addr independent of CONFIG_PROC_VMCORE

2008-10-20 08:52:39 -07:00

crash.c

x86, apic: remove duplicate asm/apic.h inclusions

2009-02-17 17:52:44 +01:00

doublefault_32.c

x86: fix virt_addr_valid() with CONFIG_DEBUG_VIRTUAL=y, v2

2008-10-13 10:33:15 +02:00

ds.c

x86, ds, bts: cleanup/fix DS configuration

2009-01-22 14:35:00 +01:00

dumpstack_32.c

ftrace: print real return in dumpstack for function graph

2008-12-03 08:56:25 +01:00

dumpstack_64.c

x86-64: Move current task from PDA to per-cpu and consolidate with 32-bit.

2009-01-19 00:38:58 +09:00

dumpstack.c

x86: don't pretend that non-framepointer stack traces are reliable

2009-02-09 09:45:29 +01:00

dumpstack.h

ftrace: print real return in dumpstack for function graph

2008-12-03 08:56:25 +01:00

e820.c

x86: check range in reserve_early()

2009-02-24 22:43:15 +01:00

early_printk.c

x86: early_printk.c - fix pgtable.h unification fallout

2009-02-09 11:32:17 +01:00

early-quirks.c

x86: only scan the root bus in early PCI quirks

2009-01-09 12:46:22 -08:00

efi_32.c

…

efi_64.c

x86: remove include of apic.h from hardirq_64.h

2009-01-23 11:03:29 +09:00

efi_stub_32.S

Merge branch 'x86/asm' into x86/mm

2009-02-25 08:27:46 +01:00

efi_stub_64.S

x86: efi_stub_32,64 - add missing ENDPROCs

2009-02-24 18:08:40 +01:00

efi.c

x86: make UV support configurable

2009-01-21 13:00:42 +01:00

entry_32.S

x86: minor cleanup in the espfix code

2009-02-23 11:34:04 -08:00

entry_64.S

Merge branch 'x86/asm' into x86/mm

2009-02-25 08:27:46 +01:00

ftrace.c

tracing, x86: fix constraint for parent variable

2009-02-11 10:06:13 +01:00

geode_32.c

…

head32.c

x86: change static allocation of trampoline area

2008-12-08 13:49:45 +01:00

head64.c

x86: remove pda_init()

2009-01-20 12:29:19 +09:00

head_32.S

x86: use _types.h headers in asm where available

2009-02-13 11:35:01 -08:00

head_64.S

x86: head_64.S - use IDT_ENTRIES instead of hardcoded number

2009-02-24 18:08:38 +01:00

head.c

x86, debug: remove EBDA debug printk

2008-12-12 11:08:42 +01:00

hpet.c

Merge branch 'x86-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

2009-02-17 14:27:39 -08:00

i386_ksyms_32.c

ftrace: rename FTRACE to FUNCTION_TRACER

2008-10-20 18:27:03 +02:00

i387.c

x86: fix __cpuinit/__init tangle in init_thread_xstate()

2008-11-20 16:43:41 +01:00

i8237.c

i8327: fix outb() parameter order

2009-02-10 13:13:23 +01:00

i8253.c

cpumask: convert struct clock_event_device to cpumask pointers.

2008-12-13 21:20:26 +10:30

i8259.c

x86: refactor x86_quirks support

2009-02-23 00:08:11 +01:00

init_task.c

take init_fs to saner place

2008-12-31 18:07:42 -05:00

io_delay.c

…

ioport.c

x86-32: use non-lazy io bitmap context switching

2009-03-02 12:07:48 +01:00

irq_32.c

Merge branch 'tj-percpu' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/misc into core/percpu

2009-02-24 21:52:45 +01:00

irq_64.c

x86: unify do_IRQ()

2009-02-09 12:16:05 +01:00

irq.c

x86, apic: remove genapic.h

2009-02-17 17:52:44 +01:00

irqinit_32.c

x86: refactor x86_quirks support

2009-02-23 00:08:11 +01:00

irqinit_64.c

x86: irqinit_64.c init_ISA_irqs should be static

2009-01-04 18:19:41 +01:00

k8.c

x86, gart: fix gart detection for Fam11h CPUs

2008-10-28 17:10:27 +01:00

kdebugfs.c

…

kgdb.c

x86, apic: remove genapic.h

2009-02-17 17:52:44 +01:00

kprobes.c

kprobes: check CONFIG_FREEZER instead of CONFIG_PM

2009-01-16 14:32:17 -05:00

kvm.c

…

kvmclock.c

x86: refactor x86_quirks support

2009-02-23 00:08:11 +01:00

ldt.c

x86: ldt.c fix style problems

2009-01-02 17:46:24 +01:00

machine_kexec_32.c

x86: kexec/i386: fix sparse warnings: Using plain integer as NULL pointer

2009-02-22 09:27:11 +01:00

machine_kexec_64.c

x86: kexec: Use one page table in x86_64 machine_kexec

2009-02-03 18:29:18 -08:00

Makefile

x86: don't compile vsmp_64 for 32bit

2009-02-26 06:40:06 +01:00

mca_32.c

x86: refactor x86_quirks support

2009-02-23 00:08:11 +01:00

mfgpt_32.c

trivial: fix then -> than typos in comments and documentation

2009-01-06 11:28:06 +01:00

microcode_amd.c

x86: fix warning in arch/x86/kernel/microcode_amd.c

2008-12-19 01:31:54 +01:00

microcode_core.c

Merge branches 'x86/apic', 'x86/cleanups', 'x86/cpufeature', 'x86/crashdump', 'x86/debug', 'x86/defconfig', 'x86/detect-hyper', 'x86/doc', 'x86/dumpstack', 'x86/early-printk', 'x86/fpu', 'x86/idle', 'x86/io', 'x86/memory-corruption-check', 'x86/microcode', 'x86/mm', 'x86/mtrr', 'x86/nmi-watchdog', 'x86/pat2', 'x86/pci-ioapic-boot-irq-quirks', 'x86/ptrace', 'x86/quirks', 'x86/reboot', 'x86/setup-memory', 'x86/signal', 'x86/sparse-fixes', 'x86/time', 'x86/uv' and 'x86/xen' into x86/core

2008-12-23 16:27:23 +01:00

microcode_intel.c

x86: microcode_intel.c fix style problems

2009-01-12 11:22:40 +01:00

mmconf-fam10h_64.c

x86, pci: move arch/x86/pci/pci.h to arch/x86/include/asm/pci_x86.h

2008-12-29 18:17:36 +01:00

module_32.c

x86: module_32.c fix style problems

2009-01-12 11:22:55 +01:00

module_64.c

x86: module_64.c fix style problems

2009-01-12 11:23:01 +01:00

mpparse.c

x86: check mptable physptr with max_low_pfn on 32bit

2009-02-23 07:41:31 +01:00

msr.c

x86: msr.c fix style problems

2009-01-12 11:22:50 +01:00

olpc.c

x86, olpc: fix model detection without OFW

2009-02-14 23:05:25 +01:00

paravirt_patch_32.c

x86/pvops: add a paravirt_ident functions to allow special patching

2009-01-30 14:51:44 -08:00

paravirt_patch_64.c

x86/pvops: add a paravirt_ident functions to allow special patching

2009-01-30 14:51:44 -08:00

paravirt-spinlocks.c

x86: remove byte locks

2009-01-20 17:14:28 +01:00

paravirt.c

x86: refactor x86_quirks support

2009-02-23 00:08:11 +01:00

pci-calgary_64.c

arch/x86/kernel/pci-calgary_64.c: change simple_strtol to simple_strtoul

2008-11-25 15:56:03 +01:00

pci-dma.c

PCI: struct device - replace bus_id with dev_name(), dev_set_name()

2009-01-07 11:12:23 -08:00

pci-gart_64.c

Documentation: move DMA-mapping.txt to Doc/PCI/

2009-01-29 18:19:29 -08:00

pci-nommu.c

…

pci-swiotlb_64.c

Merge branch 'core/iommu' into core/urgent

2009-01-05 14:17:24 +01:00

pcspeaker.c

…

pmtimer_64.c

…

probe_roms_32.c

x86: move mach-default/*.h files to asm/

2009-01-29 14:16:51 +01:00

process_32.c

x86: unify chunks of kernel/process*.c

2009-03-02 12:07:48 +01:00

process_64.c

x86: unify chunks of kernel/process*.c

2009-03-02 12:07:48 +01:00

process.c

x86: unify chunks of kernel/process*.c

2009-03-02 12:07:48 +01:00

ptrace.c

Merge branches 'x86/apic', 'x86/cpu', 'x86/fixmap', 'x86/mm', 'x86/sched', 'x86/setup-lzma', 'x86/signal' and 'x86/urgent' into x86/core

2009-03-04 02:22:31 +01:00

pvclock.c

x86: pvclock: fix shadowed variable warning

2008-10-15 14:25:14 +02:00

quirks.c

x86: enable HPET on Fujitsu u9200

2008-12-16 20:36:44 +01:00

reboot_fixups_32.c

…

reboot.c

x86, apic: remove duplicate asm/apic.h inclusions

2009-02-17 17:52:44 +01:00

relocate_kernel_32.S

x86: use _types.h headers in asm where available

2009-02-13 11:35:01 -08:00

relocate_kernel_64.S

x86: use _types.h headers in asm where available

2009-02-13 11:35:01 -08:00

rtc.c

rtc: use bcd2bin/bin2bcd

2008-10-20 08:52:41 -07:00

scx200_32.c

…

setup_percpu.c

x86: make embedding percpu allocator return excessive free space

2009-03-06 14:33:59 +09:00

setup.c

x86: don't compile vsmp_64 for 32bit

2009-02-26 06:40:06 +01:00

signal.c

x86, signals: fix xine & firefox bustage

2009-03-03 09:03:12 +01:00

smp.c

x86, apic: remove genapic.h

2009-02-17 17:52:44 +01:00

smpboot.c

x86: apic: simplify secondary CPU wakeup methods

2009-02-26 13:58:26 +01:00

stacktrace.c

x86: update copyrights

2009-01-31 04:21:18 +01:00

step.c

…

sys_i386_32.c

…

sys_x86_64.c

Merge branches 'x86/alternatives', 'x86/cleanups', 'x86/commandline', 'x86/crashdump', 'x86/debug', 'x86/defconfig', 'x86/doc', 'x86/exports', 'x86/fpu', 'x86/gart', 'x86/idle', 'x86/mm', 'x86/mtrr', 'x86/nmi-watchdog', 'x86/oprofile', 'x86/paravirt', 'x86/reboot', 'x86/sparse-fixes', 'x86/tsc', 'x86/urgent' and 'x86/vmalloc' into x86-v28-for-linus-phase1

2008-10-06 18:17:07 +02:00

syscall_64.c

x86: Fix ASM_X86__ header guards

2008-10-22 22:55:23 -07:00

syscall_table_32.S

x86: pass in pt_regs pointer for syscalls that need it

2009-02-11 12:40:45 +01:00

tce_64.c

…

test_nx.c

…

test_rodata.c

…

time_32.c

x86: refactor x86_quirks support

2009-02-23 00:08:11 +01:00

time_64.c

x86: Add IRQF_TIMER to legacy x86 timer interrupt descriptors

2009-02-22 10:27:49 -08:00

tlb_uv.c

x86, apic: remove duplicate asm/apic.h inclusions

2009-02-17 17:52:44 +01:00

tls.c

…

tls.h

…

topology.c

…

trampoline_32.S

x86: use _types.h headers in asm where available

2009-02-13 11:35:01 -08:00

trampoline_64.S

x86: use _types.h headers in asm where available

2009-02-13 11:35:01 -08:00

trampoline.c

x86: change static allocation of trampoline area

2008-12-08 13:49:45 +01:00

traps.c

x86-32: use non-lazy io bitmap context switching

2009-03-02 12:07:48 +01:00

tsc_sync.c

Merge branches 'x86/apic', 'x86/cleanups', 'x86/cpufeature', 'x86/crashdump', 'x86/debug', 'x86/defconfig', 'x86/detect-hyper', 'x86/doc', 'x86/dumpstack', 'x86/early-printk', 'x86/fpu', 'x86/idle', 'x86/io', 'x86/memory-corruption-check', 'x86/microcode', 'x86/mm', 'x86/mtrr', 'x86/nmi-watchdog', 'x86/pat2', 'x86/pci-ioapic-boot-irq-quirks', 'x86/ptrace', 'x86/quirks', 'x86/reboot', 'x86/setup-memory', 'x86/signal', 'x86/sparse-fixes', 'x86/time', 'x86/uv' and 'x86/xen' into x86/core

2008-12-23 16:27:23 +01:00

tsc.c

x86: replace CONFIG_X86_SMP with CONFIG_SMP

2009-01-29 14:17:00 +01:00

uv_irq.c

x86, apic: remove genapic.h

2009-02-17 17:52:44 +01:00

uv_sysfs.c

x86: Add sysfs entries for UV v4

2008-10-16 16:53:13 +02:00

verify_cpu_64.S

…

visws_quirks.c

x86: refactor x86_quirks support

2009-02-23 00:08:11 +01:00

vm86_32.c

x86: use regparm(3) for passed-in pt_regs pointer

2009-02-11 14:00:56 -08:00

vmi_32.c

x86, apic: remove genapic.h

2009-02-17 17:52:44 +01:00

vmiclock_32.c

Merge branches 'x86/acpi', 'x86/apic', 'x86/asm', 'x86/cleanups', 'x86/mm', 'x86/signal' and 'x86/urgent'; commit 'v2.6.29-rc6' into x86/core

2009-02-24 21:50:43 +01:00

vmlinux_32.lds.S

x86: use _types.h headers in asm where available

2009-02-13 11:35:01 -08:00

vmlinux_64.lds.S

x86: use _types.h headers in asm where available

2009-02-13 11:35:01 -08:00

vmlinux.lds.S

…

vsmp_64.c

x86: don't compile vsmp_64 for 32bit

2009-02-26 06:40:06 +01:00

vsyscall_64.c

Merge branch 'tracing-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip

2008-12-28 12:21:10 -08:00

x8664_ksyms_64.c

x86: convert pda ops to wrappers around x86 percpu accessors

2009-01-16 14:20:22 +01:00

xsave.c

x86: xsave.c: restore_user_xstate should be static

2008-12-30 13:31:41 -08:00